Challengers of the Unknown #65

In "The Devil's Circus!" from *Challengers of the Unknown* #65 (1968), the team races to Cobra Canyon after a frantic patient's wild warnings about a sinister circus. Trapped in a colossal ant farm by Dread, a monstrous Frankenstein-insectoid alien, the Challengers must use cunning and teamwork to survive his relentless pursuit—before the sands claim them all.

In "Chapter Three: The Freezing Sun!", Red returns to the island to discover the second chamber open and Rocky frozen solid, as a mysterious, sentient sun from beyond begins draining all heat from the world, turning everything to ice. With the island in peril, Red races to build a vacuum chamber to trap the sun, while Prof, stranded at sea, realizes the Dragon Seed Giant’s invulnerability lies not in matter—but in thought—and begins to unravel it with sheer will. Above it all, Morelian watches, silent and unseen.

In "Chapter Four: The Whirling Weaver!", the Challengers face a terrifying new threat: a spinning device that unleashes ribbons capable of entangling entire cities. As they track the source, they uncover a hidden dial that halts the machine—only to return to the island and find Morelian has opened the fourth chamber, driven by greed. He claims a diamond ring promises immortality, but the truth behind the box’s cryptic inscription will prove far more deadly than he ever imagined.